LeonaBio, Inc LONA

Open calendar →

LeonaBio, Inc. - Common Stock · Company · Nasdaq · Healthcare / Biotechnology

Paper trade (simulated — no real money)

Fill: USD 4.8400 · FX 1 USD = 1.278120 SGD · about SGD 6.1861 per unit

Sign in to practise with simulated trades before investing real money. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 4.15 → 4.84 · 16.6%
11.6807.2752.870 1,2 3,4 5 6,7 8 9 10 11 12,13,14,15 16,17 18,19 20,21 22 23,24 25 26 Oct 25Jan 26Apr 26Jul 26Oct 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 25 Oct 2025 — 26 Oct 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
Weekend
Weekend
4.9900 5.0200 4.8300 4.8400 33,800
5.5900 5.6710 4.6900 4.9700 49,800
5.3000 5.7500 5.3000 5.6700 11,800
5.1100 5.4600 4.8600 5.2700 61,500
5.2300 5.3850 4.7700 5.0500 41,000
Weekend
Weekend
5.3000 5.4300 5.1500 5.2000 61,300
5.4100 5.4400 4.9100 5.2900 35,200
6.3300 6.3300 5.2500 5.3900 103,000
6.0600 6.7200 5.6490 6.4300 57,400
5.8200 6.3970 5.5700 6.1650 386,300
Weekend
Weekend
5.8200 6.1000 5.5600 5.7500 66,700
5.7800 6.0700 5.5150 5.7500 134,600
5.7700 6.2100 5.6100 5.8300 178,100
5.6300 5.8800 5.2500 5.7500 175,600
4.7500 5.7200 4.5100 5.5800 295,600
Weekend
Weekend
4.4400 4.9000 4.1800 4.8200 332,100
3.5150 5.3400 3.4200 4.3800 6,300,400
3.5100 3.5900 3.3100 3.5700 40,300
2.8000 3.7500 2.5700 3.5100 439,100
3.3000 3.3000 2.2100 2.8700 948,900
Weekend
Weekend
5.1900 5.5950 3.1200 3.2500 343,700
6.0400 6.3150 4.9000 4.9900 151,000
6.3500 6.3500 5.6900 5.8900 21,400
26 · 8-K After-hours · 16:20 ET 8-K ↗
6.4000 6.7500 5.9500 6.0500 34,900
6.7150 6.7600 6.2300 6.3300 45,600
Weekend
Weekend
7.5900 7.6550 6.6100 6.7900 52,300
6.8600 6.9500 6.7250 6.9500 5,500
7.1000 7.3000 6.6960 6.7900 51,300
6.9000 7.4700 6.9000 7.2400 23,400
7.0200 7.8000 7.0200 7.4700 23,300
Weekend
Weekend
6.7500 7.6400 6.7500 6.9200 42,700
7.1400 7.7050 6.8100 6.8600 42,300
7.9000 8.1950 7.0400 7.0400 78,900
7.5600 8.2700 7.4300 8.0200 259,300
No trading
Weekend
Weekend
7.9250 7.9250 7.4390 7.5600 14,200
7.5900 8.0700 7.5400 7.7000 7,600
7.7200 7.8050 7.6700 7.6700 5,700
7.8900 8.3450 7.5900 7.5900 154,400
8.0250 8.4000 7.9200 7.9200 34,200
Weekend
Weekend
8.0000 8.0000 7.9400 7.9400 5,100
8.1550 8.1600 7.8900 7.8900 3,500
25 · 8-K After-hours · 16:05 ET 8-K ↗
8.0500 8.1250 7.7600 7.8100 24,400
7.7600 8.2100 7.7050 8.0100 11,700
7.5700 8.1150 7.5500 7.7300 8,400
Weekend
Weekend
7.8800 7.9900 7.6000 7.6850 9,600
7.9500 8.1100 7.5700 7.7000 9,000
7.9800 8.4160 7.7800 7.8300 76,300
7.7100 8.9020 7.6300 8.1700 526,300
8.1500 8.8050 7.7100 7.7100 207,400
Weekend
Weekend
24 · 10-Q After-hours · 16:10 ET 10-Q ↗ 23 · 8-K After-hours · 16:07 ET 8-K ↗
7.8600 8.2750 7.7150 7.9650 9,300
7.8700 7.8900 7.5600 7.8700 15,900
7.6100 7.8700 7.4000 7.8700 3,500
7.6000 7.7750 7.4600 7.6200 10,700
7.5500 7.7800 7.3300 7.5000 8,800
Weekend
Weekend
7.6070 8.4200 7.5400 7.6800 35,000
7.6200 7.9800 7.6200 7.8100 4,100
7.6600 7.8100 7.4500 7.6800 7,900
7.5300 7.9000 7.5300 7.6600 6,300
7.0660 7.5980 7.0660 7.4700 11,000
Weekend
Weekend
7.3200 7.3200 7.0000 7.0600 6,600
7.2000 7.3400 7.0220 7.2900 18,200
7.1100 7.1700 6.7200 7.0400 14,700
7.5300 7.5700 6.8200 6.9700 19,800
7.3500 7.4050 7.0200 7.3600 14,100
Weekend
Weekend
7.5250 7.7100 7.0710 7.3900 9,200
7.6000 7.7500 7.2400 7.2400 6,300
7.9000 8.0000 7.5600 7.5600 9,900
7.8400 7.9800 7.7400 7.9800 7,200
7.2000 7.6600 7.0250 7.5700 22,000
Weekend
Weekend
7.6900 7.9000 7.0000 7.2200 65,100
8.4100 8.7500 7.2850 7.8100 55,400
9.5200 9.7100 8.5300 8.5300 21,700
9.8500 10.0100 9.4950 9.5200 13,300
9.5000 10.1050 8.9010 9.7600 315,800
Weekend
Weekend
9.1200 9.6990 9.1000 9.6000 39,000
9.0500 9.3900 8.9600 9.3900 5,900
8.5000 8.8900 8.1300 8.6700 20,000
8.5920 8.9000 8.3400 8.7400 24,300
8.5770 8.9600 8.0300 8.6800 82,100
Weekend
Weekend
No trading
8.8200 9.0400 8.3700 8.8700 22,900
9.1700 9.6000 8.3800 8.3800 29,700
9.0240 9.4380 8.8600 9.1900 13,800
9.2500 9.4100 8.6500 8.8600 20,100
Weekend
Weekend
8.7200 9.7700 8.4300 9.4000 60,700
8.6100 9.0950 8.3700 8.6900 19,200
8.3900 8.7800 8.3200 8.5900 6,100
22 · 8-K After-hours · 16:05 ET 8-K ↗
7.9100 8.3900 7.9100 8.3500 4,100
8.2200 8.2700 7.9600 8.2700 21,900
Weekend
Weekend
No trading
8.3200 8.4600 8.0300 8.1800 8,600
7.9700 8.2300 7.8090 8.2300 12,000
8.4700 8.4800 7.8800 7.8800 25,400
8.5100 9.3600 8.3100 8.4500 7,700
Weekend
Weekend
8.4200 8.6900 8.2800 8.3500 15,600
8.5000 8.5750 8.2500 8.4900 12,400
8.4500 8.6550 8.2000 8.4300 13,000
8.5900 8.9100 8.4000 8.4600 20,600
8.4100 8.8800 8.2320 8.5900 12,900
Weekend
Weekend
8.6200 8.7400 8.1950 8.2200 16,000
8.8100 9.3000 8.5950 8.6100 18,500
9.1300 9.2630 8.6000 8.6300 37,500
9.3100 10.0450 9.0000 9.0200 20,600
9.5400 9.8800 9.2900 9.2900 19,700
Weekend
Weekend
9.6500 9.8190 9.5400 9.5400 9,800
10.0200 10.0200 9.6400 9.6400 5,200
10.0000 11.1200 9.6800 9.8100 51,200
10.4900 10.4900 9.5600 9.6700 88,600
No trading
Weekend
Weekend
10.4600 11.4400 10.2700 10.3300 23,000
9.4600 10.0700 9.4600 10.0700 193,200
10.1900 10.1900 9.1700 9.6200 22,800
10.1800 10.2500 9.4800 10.0900 25,100
10.7000 11.4000 8.5400 10.1300 24,400
Weekend
Weekend
10.8200 11.3200 10.7900 11.2600 34,000
10.3700 11.4400 9.6800 11.0000 85,300
10.0600 10.6400 9.6100 10.3200 23,000
10.0500 10.4250 9.5400 10.1700 28,200
21 · DEFA14A After-hours · 16:51 ET DEFA14A ↗ 20 · DEF 14A After-hours · 16:45 ET DEF 14A ↗
10.1700 10.4160 9.5300 10.0100 23,600
Weekend
Weekend
9.8500 10.4600 9.0700 10.0400 80,900
19 · 10-Q After-hours · 16:10 ET 10-Q ↗ 18 · 8-K After-hours · 16:05 ET 8-K ↗
9.6300 9.9200 9.5100 9.8600 47,200
9.6200 9.8500 9.3200 9.4200 19,700
9.4900 9.7350 9.2000 9.6300 20,400
8.7800 9.6150 8.7800 9.5500 25,200
Weekend
Weekend
9.0200 9.0850 8.2400 8.8200 31,000
8.6100 9.2800 8.4200 9.1000 15,200
8.5600 8.7700 8.5000 8.7700 37,200
8.6400 8.8470 8.5100 8.6900 12,500
8.3700 8.9900 8.3100 8.3500 14,600
Weekend
Weekend
8.6900 9.3050 7.7600 8.3300 51,200
9.2600 9.2600 8.1800 8.6200 58,300
9.4300 9.8840 8.9400 9.1600 25,500
9.5000 9.5800 8.7900 9.2200 35,000
9.0000 9.3800 8.8500 9.3800 67,300
Weekend
Weekend
8.3500 9.1440 8.0750 8.8600 42,000
9.4600 9.6100 8.0000 8.2300 51,500
9.2700 9.6800 8.8600 9.4800 33,400
9.7900 10.0600 9.0600 9.0700 35,500
9.9400 10.6800 9.7000 9.7000 33,700
Weekend
Weekend
9.6700 10.1650 9.6000 9.6900 45,200
9.7900 10.0400 9.4200 9.5400 24,600
11.7500 11.8500 9.4200 9.5800 91,000
10.9800 11.9100 10.7500 11.6800 41,300
11.4900 12.4700 10.7400 10.9900 44,000
Weekend
Weekend
No trading
9.7300 11.7140 9.5100 11.3500 56,500
17 · 424B3 Next filing day · accepted 01 Apr, 21:30 ET 424B3 ↗ 16 · 424B3 Next filing day · accepted 01 Apr, 21:30 ET 424B3 ↗
10.2300 10.5880 9.9500 10.0200 10,500
15 · S-1/A After-hours · 17:07 ET S-1/A ↗ 14 · S-1/A After-hours · 16:59 ET S-1/A ↗ 13 · 10-K After-hours · 16:11 ET 10-K ↗ 12 · 8-K/A After market open · 14:20 ET 8-K/A ↗
9.2900 10.4450 9.2170 10.2800 24,600
8.9700 9.6300 8.9700 9.2650 40,000
Weekend
Weekend
8.8900 9.3400 8.8800 8.9700 55,800
11 · 8-K After-hours · 17:10 ET 8-K ↗
8.9000 9.7900 8.7600 9.6800 125,900
9.3400 9.5250 8.8800 9.0300 37,400
9.2400 9.8100 8.8000 9.0200 33,100
10.5100 10.9000 8.7000 9.3700 81,700
Weekend
Weekend
9.4900 10.7400 9.4850 9.9200 284,600
10 · 8-K After-hours · 16:50 ET 8-K ↗
9.5700 11.5200 9.0100 9.9300 84,200
11.2800 14.2100 8.6200 9.7800 464,000
8.4900 12.0000 8.4000 11.3000 217,900
7.6700 8.8600 6.9000 8.4200 102,400
Weekend
Weekend
7.4000 7.9300 6.9620 7.6600 52,900
6.9100 7.8200 5.9900 7.5000 57,500
6.4400 7.1000 6.3950 6.9100 35,100
6.1500 6.7600 6.1500 6.4300 67,000
5.3400 6.2000 5.3200 6.1700 39,300
Weekend
Weekend
5.1100 5.5600 5.1100 5.3000 12,500
5.6260 6.0600 5.3600 5.3700 121,700
5.5300 6.1000 5.0500 5.9800 45,500
5.6700 5.7400 5.3200 5.5700 18,200
5.5800 5.8800 5.5550 5.7200 17,700
Weekend
Weekend
5.5800 5.8000 5.5200 5.6300 26,200
5.8600 5.8600 5.5900 5.6200 29,900
5.8500 6.0900 5.6400 5.8100 30,800
5.8400 6.1250 5.8400 5.9400 77,600
9 · DEF 14A After-hours · 16:05 ET DEF 14A ↗
5.4900 5.8400 5.3860 5.8000 29,700
Weekend
Weekend
5.5000 5.7000 5.3000 5.5600 40,400
5.1200 5.8920 4.9300 5.5300 117,600
4.4900 4.8300 4.4700 4.7600 17,700
4.2300 4.6000 4.2200 4.3900 282,700
No trading
Weekend
Weekend
4.6400 5.0200 4.2100 4.3400 46,300
5.0900 5.0900 4.5800 4.6800 40,800
4.8700 5.1510 4.5730 5.0000 34,000
4.6250 5.0000 4.4600 4.9000 57,700
4.6500 4.7700 4.4150 4.4600 45,100
Weekend
Weekend
4.8500 4.9150 4.5800 4.5800 33,500
4.6500 4.8400 4.4900 4.7900 62,600
8 · PRE 14A After-hours · 16:53 ET PRE 14A ↗
4.5500 4.8500 4.5500 4.7200 17,800
4.6400 5.0190 4.5400 4.6500 23,000
4.8600 4.9500 4.5800 4.6500 44,800
Weekend
Weekend
4.9100 5.0600 4.7400 4.7400 49,900
4.8000 4.9000 4.4000 4.7100 127,700
5.3100 5.3500 4.8400 4.8500 49,600
5.3500 5.4050 5.2450 5.3600 25,800
5.7900 5.7900 5.3300 5.3300 64,300
Weekend
Weekend
6.0500 6.1610 5.8000 5.8100 28,800
6.3000 6.5600 6.1100 6.1400 33,200
6.1900 6.6050 6.1900 6.2600 33,800
7 · S-3 After-hours · 16:42 ET S-3 ↗ 6 · S-3 After-hours · 16:24 ET S-3 ↗
6.0400 6.2200 5.9400 6.2100 94,100
No trading
Weekend
Weekend
6.3400 6.3400 6.0700 6.1000 77,900
6.5900 6.6250 6.2600 6.3350 59,900
6.5400 6.6000 6.3700 6.5800 44,800
6.5500 6.6700 6.4200 6.5400 93,700
6.7400 7.0000 6.5100 6.5500 50,900
Weekend
Weekend
5 · 8-K After-hours · 16:05 ET 8-K ↗
7.3000 7.3500 6.6200 6.7500 69,900
7.2900 7.4500 6.9300 7.1900 114,000
6.9000 7.4400 6.8310 7.3300 86,200
6.5700 7.0000 6.5000 6.9500 167,600
6.9900 7.1500 6.4050 6.5800 163,200
Weekend
Weekend
7.5600 7.5600 6.6000 6.9600 186,900
No trading
7.0900 7.6400 7.0800 7.5700 132,600
7.5000 7.5000 7.0000 7.0200 88,900
7.3000 7.7700 7.2890 7.5000 198,700
Weekend
Weekend
7.1700 7.6500 7.0300 7.4800 139,500
No trading
7.3300 7.4600 7.1600 7.2100 74,600
7.2400 7.7700 7.0600 7.5100 247,700
6.7700 7.7700 6.5300 7.4000 627,600
Weekend
Weekend
6.7100 7.2500 6.3700 6.9700 1,403,400
7.2600 8.3600 6.5400 6.7200 60,468,200
4 · 8-K/A Pre-market · 08:24 ET 8-K/A ↗ 3 · 8-K Pre-market · 07:16 ET 8-K ↗
3.9000 4.1700 3.9000 4.1350 25,900
3.8500 3.9500 3.8000 3.8800 15,200
4.0500 4.0500 3.8500 3.8500 8,100
Weekend
Weekend
3.8900 4.1320 3.8600 3.8700 18,000
3.9600 4.1200 3.9200 3.9500 20,500
4.0000 4.3400 3.9600 3.9600 9,900
3.8400 4.0300 3.8400 4.0100 12,000
3.9200 3.9200 3.8700 3.8800 3,300
Weekend
Weekend
3.9000 3.9600 3.8300 3.9500 10,400
3.8650 3.9700 3.8100 3.8950 8,400
4.1100 4.1300 3.8300 3.8500 27,700
4.2500 4.5010 4.0300 4.2000 22,000
4.5040 4.7400 4.1300 4.2500 37,300
Weekend
Weekend
4.5250 4.6200 4.3500 4.3500 6,000
No trading
4.3780 4.8130 4.3780 4.5200 15,500
4.3800 4.5590 4.3200 4.4900 9,700
4.5200 4.5300 4.3110 4.4150 17,200
Weekend
Weekend
4.6200 4.7400 4.5000 4.6050 28,400
4.8560 4.8620 4.3400 4.5400 33,100
4.7050 4.9500 4.6000 4.7600 54,500
4.5850 4.7610 4.5800 4.6000 9,800
4.5500 5.0000 4.4200 4.6000 32,900
Weekend
Weekend
4.6500 4.6700 4.4470 4.5200 5,400
4.7700 4.8900 4.4400 4.6950 19,100
4.7100 4.8600 4.6100 4.7000 9,700
4.5400 4.7350 4.3300 4.6250 13,100
4.0000 4.6800 3.9600 4.5800 79,600
Weekend
Weekend
3.9500 4.0700 3.7100 3.8500 43,500
2 · 10-Q After-hours · 16:13 ET 10-Q ↗ 1 · 8-K After-hours · 16:09 ET 8-K ↗
4.1700 4.2880 4.0100 4.0100 32,600
4.2400 4.2900 4.1500 4.1900 11,400
4.1500 4.4980 4.1000 4.2800 74,500
3.9500 4.1750 3.9500 4.1750 12,400
Weekend
Weekend
4.1600 4.2100 4.0600 4.1550 10,700
4.0800 4.2200 4.0800 4.1700 10,500
4.0900 4.1200 3.9900 4.0750 5,300
4.1700 4.2300 4.0500 4.2300 21,200
4.0600 4.1690 3.7800 4.1500 19,600
Weekend
Weekend

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

26 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:20 ET Summarise
25 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
24 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
23 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
22 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
21 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:51 ET Summarise
20 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:45 ET Summarise
19 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:10 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
17 424B3 424B3 (opens SEC filing in a new tab) Next filing day · accepted 01 Apr, 21:30 ET Summarise
16 424B3 424B3 (opens SEC filing in a new tab) Next filing day · accepted 01 Apr, 21:30 ET Summarise
15 S-1/A S-1/A (opens SEC filing in a new tab) After-hours · 17:07 ET Summarise
14 S-1/A S-1/A (opens SEC filing in a new tab) After-hours · 16:59 ET Summarise
13 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
12 8-K/A 8-K/A (opens SEC filing in a new tab) After market open · 14:20 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:10 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:50 ET Summarise
9 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
8 PRE 14A PRE 14A (opens SEC filing in a new tab) After-hours · 16:53 ET Summarise
7 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:42 ET Summarise
6 S-3 S-3 (opens SEC filing in a new tab) After-hours · 16:24 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
4 8-K/A 8-K/A (opens SEC filing in a new tab) Pre-market · 08:24 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:16 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:13 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:09 ET Summarise